CN108005507A - For the foolproof apparatus of rail vehicle maintenance door, maintenance door and rail vehicle - Google Patents
For the foolproof apparatus of rail vehicle maintenance door, maintenance door and rail vehicle Download PDFInfo
- Publication number
- CN108005507A CN108005507A CN201711206531.6A CN201711206531A CN108005507A CN 108005507 A CN108005507 A CN 108005507A CN 201711206531 A CN201711206531 A CN 201711206531A CN 108005507 A CN108005507 A CN 108005507A
- Authority
- CN
- China
- Prior art keywords
- door
- plate
- tongue
- maintenance door
- stopping seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/10—Hook fastenings; Fastenings in which a link engages a fixed hook-like member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The invention discloses a kind of foolproof apparatus for rail vehicle maintenance door, and the maintenance door and rail vehicle of the foolproof apparatus are provided with, the security risk that the door-plate of maintenance door can be avoided to be brought in no restrained condition.The foolproof apparatus includes stopping seat, hooks tongue, main spring.The hinged end for hooking tongue is hinged with door-plate, and the joint end for hooking tongue is provided with clamping protrusion, and clamping protrusion includes inclined plane and card access surface；One end of main spring is connected with hooking the hinged end of tongue, and the other end is connected with door-plate；During door-plate is gradually bonded closing to doorframe, above-mentioned inclined plane is subject to the thrust of stopping seat and gradually streaks stopping seat, and the joint end that tongue is hooked with order is gradually moved to the direction away from stopping seat, main spring deformation；When door-plate is bonded closing with doorframe, main spring recovers, and above-mentioned inclined plane and card access surface are respectively positioned on the side away from door-plate on stopping seat, and the joint end for hooking tongue is clamped by card access surface and stopping seat dislocation.
Description
Technical field
The present invention relates to rail vehicle technical field, more particularly to a kind of safe self-locking for rail vehicle maintenance door fills
Put.
Background technology
Overwhelming majority rail vehicle (such as locomotive, urban rail, engineering truck etc.) specific region outside car is equipped with maintenance at present
Door, equipment maintenance door or side wall maintenance door under the dynamical system maintenance door of such as public bus and electric car, rail vehicle, these
Maintenance door usually all carries out locking using compression door lock.When the compression door lock failure of maintenance door or artificial origin do not fasten
When, the door-plate in no restrained condition will will freely swing along hinge when driving, and intrusion vehicle gauge is (i.e. beyond car
Gauge, ties up vehicle-width direction gauge).In this case, there is greatly peace in Along Railway equipment and vehicle in itself
Full hidden danger.
Therefore, above-mentioned security risk how is solved, is current those skilled in the art technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, it is an object of the invention to provide a kind of foolproof apparatus and one kind to be provided with safe self-locking dress
The maintenance door put, and a kind of rail vehicle for being provided with the maintenance door, can avoid the door-plate of maintenance door from being in without about pencil
The security risk that state is brought.
To achieve the above object, the present invention provides following technical solution：
A kind of foolproof apparatus for rail vehicle maintenance door, including：
For the stopping seat on doorframe；
For the hook tongue on the inside of door-plate, the hinged end for hooking tongue is hinged with the door-plate, the card for hooking tongue
Connect end and be provided with clamping protrusion, the clamping protrusion includes inclined plane and card access surface；
Main spring, one end of the main spring and the hinged end of the hook tongue are connected, the other end and the door
Plate is connected；
During the door-plate is gradually bonded closing to the doorframe, the inclined plane is subject to the thrust of the stopping seat
And the stopping seat is gradually streaked, to make the joint end of the hook tongue gradually be moved to the direction away from the stopping seat,
The main spring deformation；
When the door-plate is bonded closing with the doorframe, the main spring recovers, the inclined plane and the card access surface
Be respectively positioned on the stopping seat away from the door-plate side, it is described hook tongue the joint end by the card access surface with it is described
Stopping seat dislocation clamping.
Preferably, in above-mentioned foolproof apparatus, the door-plate includes door-plate body and is arranged on the door-plate body
Interior pedestal,
The hinged end for hooking tongue is located in the inner cavity of the pedestal and is hinged with the pedestal.
Preferably, in above-mentioned foolproof apparatus, shaft is provided with the inner cavity of the pedestal, the hook tongue
The hinged end and the main spring are set in the shaft；
One end of the main spring and the hinged end of the hook tongue are connected, and the other end is in the described interior of the pedestal
Connected and fixed in chamber.
Preferably, it is straight between the hinged end for hooking tongue and the joint end in above-mentioned foolproof apparatus
Rod-like structure, the direct rod shape structure are vertical with plane where the door-plate under normal conditions.
Preferably, in above-mentioned foolproof apparatus, the stopping seat is platy structure.
Preferably, in above-mentioned foolproof apparatus, the inclined plane and the card access surface intersect triangle protrusion
Structure, when the hook tongue and the stop seat are in clamped condition, the card access surface is parallel with plane where the stop seat.
Preferably, in above-mentioned foolproof apparatus, when the door-plate is bonded closing with the doorframe, the card access surface
Have the pre-determined distance more than zero, so that finger can be stretched between the door-plate and the doorframe, dial between the stopping seat
Move the hook tongue.
A kind of maintenance door, including door-plate and doorframe, are additionally provided with foolproof apparatus as described above；
The stopping seat of the foolproof apparatus is installed on the doorframe；
The foolproof apparatus hooks the inner side that tongue is installed on the door-plate.
Preferably, in above-mentioned maintenance door, compression door lock is provided with the maintenance door.
A kind of rail vehicle, is provided with maintenance door as described above.
It can be seen from the above technical proposal that provided by the present invention for the foolproof apparatus of rail vehicle maintenance door,
All structures in the inner side of maintenance door, will not increase contour of the vehicle overall size, so as to (not squeezed without departing from vehicle gauge
Account for vehicle-width direction gauge).Also, when closing maintenance door, main spring control hook tongue joint end by card access surface with
Stopping seat keeps dislocation clamping, automatic locking to realize.So as to, when maintenance door due to compression door lock fail or artificial origin not
During fastening, by foolproof apparatus door-plate can be kept to be in restrained condition, prevent door-plate to be opened accidentally and exceed vehicle gauge.
As it can be seen that in the case where not occupying vehicle gauge, which can effectively avoid maintenance door and is opened accidentally caused peace
The generation of full accident, a kind of safety precautions is provided for the outer maintenance door of car.
In addition, the maintenance door provided by the invention for being provided with the foolproof apparatus, and it is a kind of and be provided with the maintenance
The rail vehicle of door, due to using above-mentioned foolproof apparatus, so as to avoid the failure of compression door lock or artificial origin not
During fastening, security risk that the door-plate of maintenance door is brought in no restrained condition.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the foolproof apparatus provided in an embodiment of the present invention for rail vehicle maintenance door.
1- door-plates, 2- pedestals, 3- shafts, 4- main springs, 5- hook tongue, 6- stopping seats, 7- doorframes.
Embodiment
The invention discloses a kind of foolproof apparatus and a kind of maintenance door for being provided with the foolproof apparatus, Yi Jiyi
Kind is provided with the rail vehicle of the maintenance door, the peace that the door-plate of rail vehicle maintenance door can be avoided to be brought in no restrained condition
Full hidden danger.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is the structure provided in an embodiment of the present invention for rail vehicle maintenance door foolproof apparatus
Schematic diagram.
Foolproof apparatus provided in an embodiment of the present invention is suitable for rail vehicle maintenance door, and the foolproof apparatus is main
Including the stopping seat 6 on maintenance door frame 7, and hook tongue 5 and main spring installed in the inner side of maintenance door board 1
4。
Wherein, it is hinged that hinged end and the door-plate 1 of tongue 5 are hooked, the joint end of hook tongue 5, which is provided with, is clamped raised, clamping protrusion
Including inclined plane 52 and card access surface 51；One end of main spring 4 is connected with hooking the hinged end of tongue 5, and the other end is connected with door-plate 1
(preferably clamping positioning).
Wherein, during door-plate 1 is to doorframe 7 gradually fitting closing, the inclined plane 52 hooked on the joint end of tongue 5 is subject to
The thrust of stop seat 6 simultaneously gradually streaks stopping seat 6, and the joint end that tongue 5 is hooked with order is gradually distance from stopping seat 6 (as hooked tongue in Fig. 1
5 rotate counterclockwise), 4 accumulation of distortion of main spring at this time；Also, when door-plate 1 is bonded closing with doorframe 7, main spring 4 is extensive
Multiple reset condition, makes the inclined plane 52 and card access surface 51 be respectively positioned on the side away from door-plate 1 on stopping seat 6, hooks the joint end of tongue 5
It is clamped by card access surface 51 and the dislocation of stopping seat 6.
It can be seen from the above technical proposal that the safety provided in an embodiment of the present invention suitable for rail vehicle maintenance door is certainly
Locking device, all structures in the inner side of maintenance door, will not increase contour of the vehicle overall size, so that without departing from vehicle gauge
(not tying up vehicle-width direction gauge).Also, when closing maintenance door, the joint end that the control of main spring 4 hooks tongue 5 passes through
Card access surface 51 keeps dislocation clamping with stopping seat 6, automatic locking to realize.So as to when maintenance door since compression door lock fails
Or artificial origin can keep door-plate 1 to be in restrained condition, prevent door-plate 1 to be opened accidentally when not fastening by foolproof apparatus
And exceed vehicle gauge.
As it can be seen that in the case where not occupying vehicle gauge, it is provided in an embodiment of the present invention to be suitable for rail vehicle maintenance door
Foolproof apparatus, can effectively avoid maintenance door be opened accidentally caused by security incident generation, for car outside maintenance door provide
A kind of safety precautions.
In order to further optimize above-mentioned technical proposal, in foolproof apparatus provided in an embodiment of the present invention, above-mentioned door-plate 1
Including door-plate body and the pedestal 2 that is arranged in door-plate body, hook tongue 5 hinged end be located in the inner cavity of pedestal 2 and with it is described
Pedestal 2 is hinged.Further, shaft 3 is provided with the inner cavity of pedestal 2, the hinged end and main spring 4 for hooking tongue 5 are set in
In shaft 3.Wherein, one end of main spring 4 is connected with hooking the hinged end of tongue 5, and the other end of main spring 4 is in pedestal 2
Connected and fixed in chamber.As shown in the figure, the opening opposite bores section of pedestal 2 is smaller, so as to be conducive to main spring 4 in pedestal 2
Inner cavity in connect and fix, avoid main spring 4 from screwing out.
In a particular embodiment, as shown in Figure 1, it is direct rod shape structure to hook between the hinged end of tongue 5 and joint end, the straight-bar
Shape structure is flat where (" normality " hooks the situation that tongue 5 is not oppressed by stop seat 6 and artificially do not promoted) under normal conditions with door-plate 1
Face (i.e. cabinet door plane) is vertical.Also, stopping seat 6 is platy structure；Hook the inclined plane 52 and card access surface 51 on the joint end of tongue 5
It is plane, inclined plane 52 and card access surface 51 intersect triangle bulge-structure.As shown in the figure, maintenance door is closed, 5 He of tongue is hooked
When stop seat 6 is in clamped condition, hooks tongue 5 and return to normal position, card access surface 51 is parallel with 6 place plane of stop seat.
Specifically, tongue 5 under normal conditions, is being hooked only by gravity and the support force of shaft 3, main spring 4 or pedestal 2, keeping
Stress balance, and keep the location status vertical with 1 place plane of door-plate.Alternatively, also it is subject to turn round bullet under normal conditions, hooking tongue 5
The restoring force (restoring force is in Fig. 1 for clockwise) of spring 4, but the restoring force is since the opening of pedestal 2 is to hooking tongue 5
Support and balance, so as to hook the location status that tongue 5 can still keep vertical with 1 place plane of door-plate.
In a particular embodiment, as shown in Figure 1, when door-plate 1 is bonded with doorframe 7 closing, card access surface 51 and stopping seat 6 it
Between have more than zero pre-determined distance, so that finger can be stretched between door-plate 1 and doorframe 7, stir hook tongue 5.So as to work as maintenance door
After door lock (generally compression door lock) is opened, can be opened certain gap between door-plate 1 and doorframe 7.Examined when needing to open
When repairing, maintenance door lock is first opened, then, makes door-plate 1 open certain gap, then in foolproof apparatus is stirred outdoors
Tongue 5 is hooked so that the joint end for hooking tongue 5 can just fill safe self-locking away from stopping seat 6 (as hook tongue 5 rotates counterclockwise in Fig. 1)
Opening is put, so as to open maintenance door.
To sum up, the course of work of foolproof apparatus provided in an embodiment of the present invention specifically includes：
1) during closing maintenance door (even door-plate 1 and the fitting of doorframe 7 are closed), the inclination on the joint end of tongue 5 is hooked
Face 52 is contacted with stop seat 6, and is subject to the thrust of stop seat 6, is gradually distance from stopping seat 6 and (is turned counterclockwise as hooked tongue 5 in Fig. 1
It is dynamic), 4 accumulated deformation of main spring at this time, until the joint end for hooking tongue 5 streaks stop seat 6 completely, then, in main spring 4
Under the action of restoring force, hook tongue 5 and recover original location status, at this time, hook the inclined plane 52 and card access surface 51 of the joint end of tongue 5
The side away from door-plate 1 on stopping seat 6 is respectively positioned on, the joint end for hooking tongue 5 is clamped by card access surface 51 and the dislocation of stopping seat 6, peace
Full self-locking device locking；
2) in driving conditions, when maintenance door lock fails, door-plate 1 will be opened to a certain extent along hinge rotation direction,
The card access surface 51 for hooking the joint end of tongue 5 at this time is contacted with stopping seat 6, and maintenance door cannot open stress；
3), can be first by maintenance door door-lock opening when needing to open maintenance door, door-plate 1, which is opened to doorframe 7, to be had necessarily
The state in gap, touches sequence with hand and hooks tongue 5, you can completely open maintenance door.
In order to further optimize above-mentioned technical proposal, because the foolproof apparatus is fully mounted on the inside of maintenance door, so
Need to paste corresponding operation mark on the outside of maintenance door, inform foolproof apparatus and mode of operation.
In addition, the embodiment of the present invention additionally provides a kind of maintenance door and a kind of rail vehicle for being provided with the maintenance door, should
The above foolproof apparatus is provided with maintenance door.Wherein, the stopping seat 6 of foolproof apparatus is installed on maintenance door
Doorframe 7 on, foolproof apparatus hook tongue 5 be installed on maintenance door board 1 inner side.Maintenance door provided in an embodiment of the present invention and
Rail vehicle, due to using above-mentioned foolproof apparatus, so as to avoid, compression door lock fails or artificial origin does not fasten
When, security risk that maintenance door is brought in no restrained condition.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there are other identical element in the process, method, article or apparatus that includes the element.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (10)
- A kind of 1. foolproof apparatus for rail vehicle maintenance door, it is characterised in that including：For the stopping seat (6) on doorframe (7)；For the hook tongue (5) on the inside of door-plate (1), the hinged end for hooking tongue (5) and the door-plate (1) are hinged, described The joint end for hooking tongue (5) is provided with clamping protrusion, and the clamping protrusion includes inclined plane (52) and card access surface (51)；Main spring (4), one end of the main spring (4) and the hinged end of the hook tongue (5) are connected, the other end and institute Door-plate (1) is stated to be connected；During the door-plate (1) is gradually bonded closing to the doorframe (7), the inclined plane (52) is subject to the stopping seat (6) thrust simultaneously gradually streaks the stopping seat (6), with make the joint end of the hook tongue (5) gradually to away from it is described only The direction movement of block seat (6), main spring (4) deformation；When the door-plate (1) is bonded closing with the doorframe (7), the main spring (4) is recovered, the inclined plane (52) and institute State card access surface (51) and be respectively positioned on the side away from the door-plate (1) on the stopping seat (6), the clamping for hooking tongue (5) End is clamped by the card access surface (51) and the stopping seat (6) dislocation.
- 2. foolproof apparatus according to claim 1, it is characterised in that the door-plate (1) includes door-plate body and sets The pedestal (2) in the door-plate body is put,The hinged end for hooking tongue (5) is located in the inner cavity of the pedestal (2) and is hinged with the pedestal (2).
- 3. foolproof apparatus according to claim 2, it is characterised in that set in the inner cavity of the pedestal (2) There is shaft (3), the hinged end for hooking tongue (5) and the main spring (4) are set in the shaft (3)；One end of the main spring (4) and the hinged end of the hook tongue (5) are connected, and the other end is in the pedestal (2) Connected and fixed in the inner cavity.
- 4. foolproof apparatus according to claim 1, it is characterised in that the hinged end for hooking tongue (5) and institute It is direct rod shape structure to state between joint end, and the direct rod shape structure is vertical with plane where the door-plate (1) under normal conditions.
- 5. foolproof apparatus according to claim 1, it is characterised in that the stopping seat (6) is platy structure.
- 6. foolproof apparatus according to claim 5, it is characterised in that the inclined plane (52) and the card access surface (51) triangle bulge-structure is intersected, when the hook tongue (5) and the stop seat (6) are in clamped condition, the clamping Face (51) is parallel with plane where the stop seat (6).
- 7. foolproof apparatus according to any one of claims 1 to 6, it is characterised in that when the door-plate (1) with it is described There is the pre-determined distance more than zero when doorframe (7) fitting is closed, between the card access surface (51) and the stopping seat (6), so as to Finger can be stretched between the door-plate (1) and the doorframe (7), stir the hook tongue (5).
- 8. a kind of maintenance door, including door-plate (1) and doorframe (7), it is characterised in that be additionally provided with such as any one of claim 1 to 7 The foolproof apparatus；The stopping seat (6) of the foolproof apparatus is installed on the doorframe (7)；The foolproof apparatus hooks the inner side that tongue (5) is installed on the door-plate (1).
- 9. maintenance door according to claim 8, it is characterised in that compression door lock is provided with the maintenance door.
- 10. a kind of rail vehicle, it is characterised in that set just like claim 8 to 9 any one of them maintenance door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206531.6A CN108005507A (en) | 2017-11-27 | 2017-11-27 | For the foolproof apparatus of rail vehicle maintenance door, maintenance door and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206531.6A CN108005507A (en) | 2017-11-27 | 2017-11-27 | For the foolproof apparatus of rail vehicle maintenance door, maintenance door and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005507A true CN108005507A (en) | 2018-05-08 |
Family
ID=62053831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711206531.6A Pending CN108005507A (en) | 2017-11-27 | 2017-11-27 | For the foolproof apparatus of rail vehicle maintenance door, maintenance door and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005507A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026481A2 (en) * | 2003-09-11 | 2005-03-24 | Southco, Inc. | Load floor latch |
| CN202320339U (en) * | 2011-10-25 | 2012-07-11 | 浙江利勃海尔中车交通系统有限公司 | Device for preventing air conditioner access door of subway carriage from being accidentally lifted |
| CN203796019U (en) * | 2014-03-12 | 2014-08-27 | 南车二七车辆有限公司 | Automatic side door limiting lock for railway box wagon |
| CN204060252U (en) * | 2014-07-18 | 2014-12-31 | 国家电网公司 | The automatic fastening mechanism in electrician tool box |
| CN204476049U (en) * | 2015-03-08 | 2015-07-15 | 高少玲 | A kind of type simple door lock structure of dolly of playing |
| CN205976829U (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Guard bar door individual malposed tooth constructs |
| CN107083885A (en) * | 2017-06-16 | 2017-08-22 | 沈阳航天新光集团有限公司 | Cabin door locking apparatus |
-
2017
- 2017-11-27 CN CN201711206531.6A patent/CN108005507A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026481A2 (en) * | 2003-09-11 | 2005-03-24 | Southco, Inc. | Load floor latch |
| CN202320339U (en) * | 2011-10-25 | 2012-07-11 | 浙江利勃海尔中车交通系统有限公司 | Device for preventing air conditioner access door of subway carriage from being accidentally lifted |
| CN203796019U (en) * | 2014-03-12 | 2014-08-27 | 南车二七车辆有限公司 | Automatic side door limiting lock for railway box wagon |
| CN204060252U (en) * | 2014-07-18 | 2014-12-31 | 国家电网公司 | The automatic fastening mechanism in electrician tool box |
| CN204476049U (en) * | 2015-03-08 | 2015-07-15 | 高少玲 | A kind of type simple door lock structure of dolly of playing |
| CN205976829U (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Guard bar door individual malposed tooth constructs |
| CN107083885A (en) * | 2017-06-16 | 2017-08-22 | 沈阳航天新光集团有限公司 | Cabin door locking apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101734536A (en) | Elevator door lock device of vertical sliding door | |
| CN108005507A (en) | For the foolproof apparatus of rail vehicle maintenance door, maintenance door and rail vehicle | |
| CN105110152B (en) | Elevator is anti-to take off door gear | |
| CN204057610U (en) | A kind of self-align gate is locked a door cutter | |
| CN209080028U (en) | A kind of hooking device and cargo box sideboard lock mechanism | |
| CN206299009U (en) | A kind of curtain wall installing structure | |
| CN103303334B (en) | The method for tooling of Anti-creep device of rail vehicle | |
| CN110409720A (en) | One kind automatically resets retractable roof system | |
| CN207226779U (en) | Fall arrest door-plate interlock | |
| CN206071285U (en) | It is a kind of to fasten reliable large lamp box | |
| CN208637986U (en) | A kind of interlocking bus plugging box | |
| CN209569506U (en) | A kind of wall-mounted safety monitoring equipment being easily installed | |
| CN207098420U (en) | A kind of switch cubicle overhauls electric shock-prevention safety locking device | |
| CN209979204U (en) | Half-height door electronic lock testing device | |
| CN217328822U (en) | Prevent two suspension installation bases of air suction arm of cement column damage | |
| CN207829662U (en) | A kind of uplifting window with automatic locking apparatus | |
| CN105416323B (en) | Car door mechanism protection device | |
| CN109178034A (en) | Excurvation broken rail device radix saposhnikoviae fireproofing installation under logistics track vertical shaft | |
| CN217380314U (en) | Quick-release fireproof door | |
| CN204099135U (en) | Cabin slide and engine rooms of wind power generators | |
| CN207348765U (en) | A kind of door panel structure of rolling screen door | |
| CN107628043B (en) | Rail vehicle apron board and mounting method | |
| CN212502089U (en) | Manhole device for well cementation ash tank | |
| CN206129028U (en) | Glass curtain wall opens falling -off -resistant structure of window | |
| CN218483082U (en) | Inverter for solar photovoltaic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180508 |